Table 3.

Adjusted IRRs for combined cancer outcomes in PKD versus non-PKD kidney transplant recipients

Characteristic	All Cancers		All Cancers, Excluding Kidney and Skina
	Multivariate IRR (95% CI)b	P Value	Multivariate IRR (95% CI)b	P Value
PKD	0.84 (0.77 to 0.91)	<0.001	0.83 (0.75 to 0.91)	<0.001
Age at transplantation		<0.001		<0.001
0–19 yr	0.46 (0.39 to 0.55)		0.57 (0.47 to 0.67)
20–34 yr	0.52 (0.47 to 0.57)		0.54 (0.48 to 0.60)
35–49 yr	Reference		Reference
50–64 yr	2.06 (1.93 to 2.19)		2.15 (2.01 to 2.31)
≥65 yr	3.22 (2.97 to 3.49)		3.53 (3.23 to 3.86)
Female sex	0.75 (0.71 to 0.79)	<0.001	0.80 (0.76 to 0.85)	<0.001
Race/ethnicity		<0.001		<0.001
White, non-Hispanic	Reference		Reference
Black, non-Hispanic	0.94 (0.88 to 1.00)		0.94 (0.88 to 1.02)
Hispanic	0.63 (0.58 to 0.69)		0.64 (0.59 to 0.71)
Asian/Pacific Islander	0.66 (0.58 to 0.74)		0.70 (0.61 to 0.79)
Duration of dialysis		0.037		0.27
0–6 mo	Reference		Reference
>6–24 mo	1.06 (0.98 to 1.14)		1.09 (1.00 to 1.18)
>24–48 mo	1.05 (0.97 to 1.13)		1.07 (0.98 to 1.17)
>48 mo	1.15 (1.05 to 1.26)		1.10 (1.00 to 1.21)
Missing mo	1.06 (0.95 to 1.19)		1.08 (0.95 to 1.22)
Time since transplant		<0.001		<0.001
<1 yr	Reference		Reference
1 to <3 yr	1.06 (0.98 to 1.15)		1.10 (1.00 to 1.20)
3 to <5 yr	1.18 (1.08 to 1.29)		1.20 (1.10 to 1.32)
>5 yr	1.72 (1.60 to 1.86)		1.73 (1.59 to 1.89)

^aThese analyses exclude kidney cancers, RCCs, melanomas, and nonepithelial skin cancers.

^bAdjusted for factors in this table.